Portugal powered by 100% renewable energy for over four days

An exciting renewable energy feat in Europe shows us just what a sustainable energy future will look like – and that future is not too far away. From May 7 to May 11, Portugal was powered entirely by renewable sources. During the 107 hours of 100 percent renewable energy, the country drew on hydropower, wind power, biofuels, and solar to make this green electricity dream a reality.

This isn’t the first renewable energy achievement for Portugal; back in 2011 they powered the country entirely by renewable energy for a couple of hours, but the recent feat marks the great strides they’ve taken towards supplying electricity using more clean sources.